Yesterday's Tractor Co. Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Tool Talk Discussion Forum

Re: Shop Floor Heat

[Show Entire Topic]  

Welcome Guest, Log in or Register
Author  [Modern View]
George Marsh

03-06-2013 10:13:21

Report to Moderator

Bet once you get the concrete warm, it will stay warm for a while. I think the specific heat for concrete is about 0.5. Water is 1.0. What this means it is it takes the same energy to heat 2 pounds of concrete as it takes to heat 1 pound of water.

Your slow response is because you have tons of concrete, thermal mass, to warm up.

If it require 24 hours to recover, water heater not shutting off, it would cost me about $15.

Could see the advantage of having dry floors.

I was working in my 24x24 garage today, not shop, which is attached to my house. I can heat it with a 1500 watt baseboard heater. However, I haven't had the heater on in years. The garage temp was 45. Last night it was about 20. My garage has over R20 walls, R50 ceiling, Anderson windows, insulated doors. Leave windows cracked open a little to keep it dryed out. I think the reason my garage stays warm is because it is south facing, brick on the outside, some heat comes through the insulated wall from house and the main reason is my 6 inch concrete floor is resting on 8 inches of pea gravel. The gravel acts as an insulator.

Hope your heating works well for you. Like you said, you could heat the water with anything. May find out propane is cheaper.


[Log in to Reply]   [No Email]

03-06-2013 11:55:36

Report to Moderator
 Re: Shop Floor Heat in reply to George Marsh, 03-06-2013 10:13:21  
Quoting Removed, click Modern View to see

That is what most people do. An electric water heater is the least cost effective method.

Go to AgTalk for WAY more info on what people are doing with in floor heat. It is a good idea if you are going to be in a shop everyday. If you are only there on nights or weekends radiant tubes seem much better.

[Log in to Reply]  [No Email]
George Marsh

03-06-2013 12:20:29

Report to Moderator
 Re: Shop Floor Heat in reply to sflem849, 03-06-2013 11:55:36  
Decided to crunch some numbers. My 30x40 pole barn has a 6 inch floor. Using my floor, it will take 444,444 BTU's to change concrete just 10 degrees. If I used a 5500 watt electric water heater, it would take 23.7 hours to do the job. Not factoring in any heat losses. SOOOOOO, it will cost me $15 to change my floor temp 10 degrees.

If anyone wants to check my calculations:

specific heat for concrete is 0.5
1 yard of concrete is 4000 pounds.
these numbers may not be exact, but close. I was trusting my old memory.


[Log in to Reply]  [No Email]

03-07-2013 04:42:00

Report to Moderator
 Re: Shop Floor Heat in reply to George Marsh, 03-06-2013 12:20:29  
Quoting Removed, click Modern View to see

So wouldn't this be true for propane? There are 91,300 btus in a gallon of propane. Propane is around $3/gal right now. So it would cost $14.60 to heat the same floor with propane. About the same.

Don't you need to account for efficiencies somewhere in the calculations?

[Log in to Reply]  [No Email]

03-06-2013 15:49:21

Report to Moderator
 Re: Shop Floor Heat in reply to George Marsh, 03-06-2013 12:20:29  
How many KWH to MAINTAIN it at say55 degrees?

[Log in to Reply]  [No Email]
George Marsh

03-06-2013 19:39:55

Report to Moderator
 Re: Shop Floor Heat in reply to GordoSD, 03-06-2013 15:49:21  
Heat loss is calculated by knowing the R rating of walls, ceiling, windows, doors, loss through ground, not to mention air infiltration. You also have to know the delta temp between inside and outside temps. Windows are rated in U ratings which you convert to R. R = 1/U Oh, you also need to know the surface area of each part of the building too, doors, windows, walls, ceiling, floor.

Give me that, the rest is very simple.

It's very cheap to heat just air.


[Log in to Reply]  [No Email]
[Show Entire Topic]     [Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2018 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters